B17 · Reference edition 2026.11
Phase boxes — Layout and sequence
A phase box is a protective enclosure whose dimensions and closure depend on the stored form. Record the flap sequence explicitly.
Scope and purpose
Place the relevant elements in a visible order before completing the record. A diagram should distinguish position from sequence and should preserve the orientation used in the written notes. Review the example for a practical way to make the relationship explicit.
Working notes
This collection describes enclosure forms, access routes and documentation practices for paper-based material. It is intended for reading and planning, not for directing treatment of fragile objects. Fold diagrams and record examples are original illustrations with no associated collection or accession data. Material descriptions distinguish observed features from documented properties. Decisions about a real object, its condition and its environment require the relevant professional judgement.
Practical example
Keep the object orientation identical across the measuring sketch and folding record.
| Reference record | Interpretation |
|---|---|
| B17 | Phase boxes |
| Scope and purpose | A phase box is a protective enclosure whose dimensions and closure depend on the stored form. Record the flap sequence explicitly. |
| Limits and interpretation | The term does not certify a material or guarantee long-term preservation. |
Review checklist
Identify the starting condition; mark the order or orientation; check that labels in the figure match the accompanying table.